Plow



A. SCHRADER Aug. 14,` 1934.

PLOW

Filed Maron 21. lss

2 Sheets-Sheet 1 ug.' 14, 1934. A SCHRADER y 1,969,859

PLOW

Filed March 21, 1932 2 sheets-sheet 2 In yefear Patented Aug. 14, 1934 UNITED? STATE-s.,

PATENT oFFgl-cs g PLOW Y Albert Schrader, Timlrenjlans.y n Application March 21, 1932, seniarNafcnv: 5 Claims. (Cl. 976)' This invention relates generally to' plows andhas. particular reference. to a plow`v attachment..

' 51' 'Ihe invention is especially adaptable forV use ini connection with tractor-drawn plows. and has among its: objects 'to provide aA novel gang disc. attachment'. particularlyv for mold-board type of plows.

Another object? of the' invention'` is to provide an: attachment of. the character described which is' simple in design, rigid and durable in constructiong and which embodiesthe necessaryflexibility for satisfactory operation'.

With` theY above and-' other objects in View, my' invention consists of.' -the nolvel construction, arrangement and combination of `the vari-f ousV parts andi members shown in preferred embodimentin-y the attached drawings, described 559i. inthe' following specifications andi particularlypoi'ntedl out inthe appended claims..

Referring tothe drawings:

Fig. 1 a pl'anview off a tractor-drawn gang pl'ow embodyingv my invention.

Fig. 2Y is: a side elevation of the portion oi the plow embodying my invention.

Fig. 3 is a vertical section taken through myl improved supporting -wheel on tlie vertical cen-y ter line.

F-i'g. 4-i`sf a verticall section taken on line 4-4 of Fig. 2, showing the support for the gang of disc plows.

raised position.

Fig. 9 is a side elevation of the pivotally mounted raising and lowering bar for the gang of disc plows.

In the drawings and referring to Figs. 1 to 9, inclusive, a hitch is provided which consists of fa draw bar 10 connected at one end to a tractor machine in any suitable manner, and at the other end to a cross bar 11. A brace 12 may be provided between the draw bar and cross bar. vThe hitch is suitably connected to the plow 5abeams 14, 15 and 16, which together with beam 13 form a frame which is provided with a supporting caster Wheel 17 and additional supporting Wheels 18 and 19. n, 'Ihe beams 13, 14, l5 and 16, support respecm tively the plow bottoms 20, 21, 22 and 23.

In the new and novel plow design shown err the attached drawings, the supporting wheel? 19, is of' special design asclearly indicated' in Figs.

1, 2` and 3i, and comprises a pair ofspaced mem-- bers 19A each consisting of' a circular ange 19B 60. of arcuate cross-section formed on the innerside with `an integral flange 19C. Thev flanges 19C are. bolted to'v the sides of a flange 24A which is formed integrally with the intermediate-portion ofthe hub 24", into which` the lateral portion of the axle 25 is extended and on'which the hub is rotatably mounted.-

The hub 2'4' is provided with a flange 24B' which is retainedy inthe collar 26* against move menti ol' the sha-ft 25. A pin 27" in the end of the shaft 25 acts as an additional confining element for thehub; 24;v

ring 28- is loosely positioned around the periphery of the circular members 19A. The ring 2`8v is: formedl with preferablyy an integral 75, inwardly disposed ange- 25W-'which extendsinto the space between the flanges 19C to thereby retain the ring 28 against crossedi'splacement from the periphery of the' wheel.

This! loose ring 28 which'. is' substantially of' T cross-section acts to keep the wheel 19 freeorv clear of caked mud or ground.

A's a; grease retainer forl the hub 24, lprovide a'oap 2'9 whichA is screw-mounted onf the. outer' endl off-the hub=24$ and provided with aV suitable grease valve 29A.

The gang-disc corner plow comprises a plurality of discs 30 which are mounted for rotation with a common shaft 3l in a pair of bearings 33 supported in the lower ends of the standards 34. The upper ends of the standards 34 are securely bolted to a T iron or member 35, one end of which is supported in the casting or bracket 36 which is securely bolted to the disc supporting member or bar 37 which is pivotally supported on pin 38 in bracket 39.

The bracket 39 is mounted on a bolt 40 which extends into the channeled support 41 adjustably mounted on the beam 16.

The beam 16 is provided with a pair of stud bolts 42 which extend through the slotted holes 41A of the support 4l to afford vertical ad-y justment of the support 41 and the bracket 39 relativelyto the beam 16. The proper Vertical position of the support 41 is maintained by means of four setscrews 43. Thus, the pivotal support of the disc supporting bar 37 is readily vertically adjustable relatively to the beam 16.

The inner end of the disc supporting bar 37 is connected by a breakable safety pin 44 to one side of the lower end of an operating bar 45 which is vertically slidably mounted in a bracket member 46 and held against vertical displacement by a pin 47. rlhe bracket 46 is suitably mounted to the beam 15.

It will now be readily seen from Figs. 4, 5, and 6, that to raise the gang of discs it is only necessary to remove pin 47, push the bar 45 downwardly until the hole 45A registers with the opening'for the pin 47 and reinsert pin 47 to retain the operating end of the bar 37 in lowered position with its opposite end and gang i of discs in raised position, as shown by Fig. `8.

It will be noted that the gang of discs is so supported on the bracket 39 and on the lower end of the operating bar 45,` that a, measure of protection is afforded lfor the gang of discs in case the discs strike a rock ortoughY guinbo by permitting the pin 44 to break or the barzk37 to move sidewise away from its supporting operatingbar 45. f

AThe outer end of the barr37 is bent downwardly and is provided with a threaded stud 37A for connection to an ear 33e formed integrally with the outer lbearing 33, as vshown 'in Figs. r7 and 9.

'with a U-bolt 50.

A second pull-rod 5l is provided which is connected with its hooked end to the ear of the inner bearing 33. The pull-rod 51 is also formed with an open loop 51A for connection with a U- The U-bolts and 52 are provided with stiflicient threads at their endsto afford suitable adjustment of the pull-rods 49 and 51 in the supporting member 53 which` is fixed to the "iorward end of the plow.

From the above it will be observed that I have provided a novel corner plow t6 facilitate the plowing of corners which under ordinary operations cannot be plowed by a tractor-drawn mounted disc plows supported at one end of said supporting member, means including a movable member for moving said supporting member to thereby raise and lower said disc plows, means cooperating with said movable member for retaining said supporting member in position whereby said plurality of disc plows are held in either raised or lowered position, and means connected with the forward end of the z gang plow and said plurality of discy plows adapted to retain said plurality of disc plows in alignment relatively to the longitudinally extending plow beams during the plowing operation'.

2. A corner plow attachment for tractordr/awn gang plows as embodied in claim 1, and including said alignment retaining means adjustable longitudinally between its ends and arranged .to permit the raising of said plurality of `disc plows during its connection therewith.

3. A corner plow attachment as embodied in claim v1, wherein said alignment retaining means includes -a tension bar instrumentality which is normally fixed as to the length thereof buty arranged to. permit vertical movement of. the dis plows. 100

4. A corner disc plow attachment as embodied in claim l, wherein said pivotally mounted supporting member comprises a bar normally laterally disposed during corner plowing operation and having one end bent downwardly and at itsterminus connected to said plurality of disc plows, and wherein said plurality of disc plows include a rotatable support, aplurality of bearings for said-rotatable support, agstandardextending upwardlyfrom each bearing, and means 11() connecting the upperV vends of ,saidA standards with said supporting member. f Y

5.v A corner disc plowv attachment for tractor-44 drawn gang plows as embodied in claim 1,V and including ya pivotal support for said pivotally mounted supporting member mounted on one of the plow beams of the gang plow, and means for retaining one end of said supporting member in raised or lowered `position mounted on another plow beam, said retaining means being adapted to be released from engagement with said supporting member under undue Astress against the plurality of disc plows.

ALBER'i1 scHRArDR- k,1?5 

